Physics, 16.10.2019 05:30 cvbnkifdfg
Abox is dropped from a spacecraft moving horizontally at 27.0 m/s at a distance of 155 m above the surface of a moon. the rate of freefall acceleration on this airless moon is 2.79 m/s2. (a) how long does it take for the box to reach the moon's surface? (b) what is its horizontal displacement during this time? (c) what is its vertical velocity when it strikes the surface? (d) at what speed does the box strike the moon?
Answers: 1
Physics, 22.06.2019 05:10
What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n
Answers: 1
Physics, 22.06.2019 07:10
Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers
Answers: 1
Physics, 22.06.2019 09:30
On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?
Answers: 2
Abox is dropped from a spacecraft moving horizontally at 27.0 m/s at a distance of 155 m above the s...
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